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Finding the Fourth Proportional to 28,790.94, 43,182.16 and 9,074.33

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Solution

The fourth proportional to 28,790.94, 43,182.16 and 9,074.33 is: 13,610.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,790.94 : 43,182.16 = 9,074.33 : x
  2. Step 2: Convert to fraction form
    28,790.94/43,182.16 = 9,074.33/x
  3. Step 3: Cross multiply
    28,790.94x = 43,182.16 × 9,074.33
  4. Step 4: Simplify right side
    28,790.94x = 391,848,908.67
  5. Step 5: Solve for x
    x = 391,848,908.67/28,790.94
  6. Step 6: Final answer
    x = 13,610.15

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.